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GTA 6 Storage: SSD Space and Upgrade Guide
How much space GTA 6 is likely to need, why Rockstar has stayed silent on the exact figure, and which PS5 and Xbox SSD upgrades actually work.
Rockstar has not confirmed an install size for GTA 6. Any number you see quoted as fact — including the "150–200GB" figure circulating widely — is an estimate from outside writers, not a company statement. What we can do honestly is show you what Rockstar's own last two open-world games needed, so you can size your storage with a real anchor instead of a guess, and walk through what upgrade options your console actually supports.
What we actually know
Rockstar's support pages list Red Dead Redemption 2's install size at over 100GB across PS4, Xbox One and PC, once you include the day-one patch — reported at the time by outlets including GameSpot and TechRadar alongside Rockstar's own installation requirements page. GTA V, an older and smaller game, needed roughly 95GB. GTA 6 is a larger, newer game built for current-gen consoles with 4K texture assets, so an install size at or above RDR2's is a reasonable expectation — not a confirmed figure, an inference from Rockstar's own track record.
Nothing about GTA 6's install size is confirmed. Size your storage around Rockstar's last game, not around a number someone else guessed.
Preloading opens a week before launch, so once preload begins on 12 November 2026 the real number becomes public — we will update this page the day that happens rather than guess further now.
Does an SSD actually matter for GTA 6?
Yes, separately from raw capacity. Both PS5 and Xbox Series X|S ship with custom NVMe SSDs specifically because Rockstar-style open worlds stream huge amounts of texture and geometry data as you move through the city — a slow drive is what causes pop-in and long loading screens in games like this, not just a full drive. That is exactly what "next-gen" storage architecture in both consoles was built to fix versus the PS4/Xbox One generation.
PS5 storage: internal upgrade vs. external drive
Sony's own PS5 M.2 slot requirements are specific: an NVMe (not SATA) SSD, PCIe Gen 4 or Gen 5, a minimum sequential read speed of 5,500MB/s, in one of five supported physical sizes (2230/2242/2260/2280/22110), up to a 4TB maximum. A heatsink is recommended, not strictly required, but if you fit one yourself it has to clear Sony's published clearance limits above and below the M.2 board.
External USB drives can store PS5 games, but Sony does not allow PS5 titles to run directly from external storage — a PS5 game copied to a USB drive has to be transferred back to internal (or expansion NVMe) storage before you can play it. External drives are genuinely useful only as a "cold storage" shelf for games you're not playing right now; only PS4 back-compat titles can run straight off USB.
Internal upgrade — any PS5-spec NVMe SSD, 1–2TB
Match Sony's minimum 5,500MB/s read-speed requirement and a supported form factor (2280 is the standard consumer size) before you buy — not every fast-looking NVMe drive on a retail shelf actually clears the PS5's bar. Sony's own compatibility page is the definitive checklist.
External cold storage — Seagate Game Drive for PS5
A licensed external SSD for shelving PS4 titles and games you're rotating out of active rotation, not for playing PS5-native games directly.
Xbox Series X|S storage: the expansion card vs. USB
Xbox Series X|S uses a proprietary rear-slot expansion card — Microsoft's officially licensed option is the Seagate Storage Expansion Card, sold in 512GB, 1TB and 2TB sizes, built to match the console's internal SSD speed exactly rather than being a generic external drive. A standard USB 3.0 external hard drive or SSD works too, but only for storing Xbox One, Xbox 360 and original Xbox back-compat titles — Series X|S-optimized games (which GTA 6 will be) still have to run from the internal SSD or the official expansion card.
Xbox Series X|S — Seagate Storage Expansion Card
The only expansion option Microsoft supports for Series X|S-native games. Buy the largest size your budget allows if you plan to keep more than two or three current-gen open-world games installed at once.
Our recommendation before launch
If your console already has 1TB or more free, don't buy anything yet — wait for Rockstar's preload to confirm the real number on 12 November 2026, a week before launch. If you're already tight on space, a 1–2TB expansion (internal NVMe for PS5, the official expansion card for Xbox) is a safe pre-launch buy either way, since it benefits every other current-gen game you own, not just GTA 6.